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US3230084A Expired / Lapsed US ⏱️ 0.0 years remaining

Novel photographic products and processes

Assignee: Polaroid Corp
•
Filing: 1959-05-18
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Granted: 1966-01-18
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Expires: 1979-05-18
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Abstract

No abstract record available.

Inventors

  • 👤 Myron S Simon
  • 👤 Stanley H Mervis

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 14:43
CPC Classifications
C; C09; C09B; C09B43/00; C09B43/18; C09B1/00; C09B1/16; C09B1/20; C09B1/26; C09B1/28; C09B1/285; C09B1/50; C09B1/51; C09B1/515; C09B1/5155; C09B33/00; C09B33/02; C09B33/06; C09B5/00; C09B5/24; C09B5/2409; C09B5/2436; C09B5/2445; C09B5/2454; C09B5/2463; C09B5/2472; G; G03; G03C; G03C8/00; G03C8/02; G03C8/08; G03C8/10; G03C8/12; G03C8/14; G03C8/16; G03C8/18; Y; Y10; Y10S; Y10S430/00; Y10S430/156

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 168 words
A PROCESS OF FORMING TRANSFER IMAGES IN COLOR WHICH COMPRISES THE STEPS OF EXPOSING A PHOTOSENSITIVE ELEMENT COMPRISING A PLURALITY OF LAYERS INCLUDING A LAYER CONTAINING A SILVER HALIDE EMULSION, AT LEAST ONE OF SAID LAYERS CONTANINING A DYE SELECTED FROM THE GROUP CONSISTING OF AZO AND ANTHRAQUINONE DYES WHICH POSSESS NOT LESS THAN ONE AND NOT MORE THAN TWO GROUPS SELECTED FROM THE GROUP CONSISTING OF THE ALKOXALYL AND ARYLOXALYL MONOAND DIESTERS OF ORTHO- AND PARA-DIHYDROXYPHENYL GROUPS; CONTACTING THE EXPOSED PHOTOSENSITIVE ELEMENT WITH AN AQUEOUS ALKALINE SOLUTION; THEREBY PROVIDING HYDROLYSIS OF SAID ESTER GROUPS, SUBSEQUENT TO PHOTOEXPOSURE, AND DEVELOPMENT OF THE EXPOSED SILVER HALIDE EMULSION; IMMOBILIZING SAID DYE IN DEVELOPED AREAS OF SAID PHOTOSENSITIVE ELEMENT, AS A FUNCTION OF THE POINT-TO-POINT DEGREE OF EXPOSURE OF EMULSION; THEREBY PROVIDING AN IMAGEWISE DISTRIBUTION OF MOBILE DYE, IN UNDEVELOPED AREAS OF SAID PHOTOSENSITIVE ELEMENT; AND TRANSFERRING, BY IMBIBITION, AT LEAST A PORTION OF SAID IMAGEWISE DISTRIBUTION OF MOBILE DYE TO A SUPERPOSED IMAGE-RECEIVING ELEMENT TO IMPART THERETO A DYE IMAGE.
Claim 2
Dependent Claim 168 words
A PROCESS OF FORMING TRANSFER IMAGES IN COLOR WHICH COMPRISES THE STEPS OF EXPOSING A PHOTOSENSITIVE ELEMENT COMPRISING A PLURALITY OF LAYERS INCLUDING A LAYER CONTAINING A SILVER HALIDE EMULSION, AT LEAST ONE OF SAID LAYERS CONTANINING A DYE SELECTED FROM THE GROUP CONSISTING OF AZO AND ANTHRAQUINONE DYES WHICH POSSESS NOT LESS THAN ONE AND NOT MORE THAN TWO GROUPS SELECTED FROM THE GROUP CONSISTING OF THE ALKOXALYL AND ARYLOXALYL MONOAND DIESTERS OF ORTHO- AND PARA-DIHYDROXYPHENYL GROUPS; CONTACTING THE EXPOSED PHOTOSENSITIVE ELEMENT WITH AN AQUEOUS ALKALINE SOLUTION; THEREBY PROVIDING HYDROLYSIS OF SAID ESTER GROUPS, SUBSEQUENT TO PHOTOEXPOSURE, AND DEVELOPMENT OF THE EXPOSED SILVER HALIDE EMULSION; IMMOBILIZING SAID DYE IN DEVELOPED AREAS OF SAID PHOTOSENSITIVE ELEMENT, AS A FUNCTION OF THE POINT-TO-POINT DEGREE OF EXPOSURE OF EMULSION; THEREBY PROVIDING AN IMAGEWISE DISTRIBUTION OF MOBILE DYE, IN UNDEVELOPED AREAS OF SAID PHOTOSENSITIVE ELEMENT; AND TRANSFERRING, BY IMBIBITION, AT LEAST A PORTION OF SAID IMAGEWISE DISTRIBUTION OF MOBILE DYE TO A SUPERPOSED IMAGE-RECEIVING ELEMENT TO IMPART THERETO A DYE IMAGE.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-01-17 1969-07-19 1970-01-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-01-17 1973-07-19 1974-01-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-01-17 1977-07-19 1978-01-18 $7700.00 Window Closed / Lapsed

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